Malicious PDF — malware analysis report

Static analysis result for SHA-256 f99116120d8df91e…

MALICIOUS

PDF

80.9 KB Created: 2022-03-27 10:39:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-14
MD5: d31b4b4225bee1b787ba42a4fc0d25ac SHA-1: 122fa8894210f60ab7cbb79acc6efcacf896fffb SHA-256: f99116120d8df91ec55433b1eb3d682f22910d1d3ec5463e993a2a8fba478b21
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://colod.co.za/YmrXLWy8?keyword=funny%20books%20for%208%20year%20olds PDF link annotation
    • https://gajonido.weebly.com/uploads/1/3/4/6/134627921/477127.pdfIn PDF document text
    • https://deselutinewim.weebly.com/uploads/1/4/1/2/141255825/2f1890be249b0a.pdfIn PDF document text
    • https://rixuxakixolewe.weebly.com/uploads/1/3/1/3/131380342/vupasobakanubejuj.pdfIn PDF document text
    • https://mikezopa.weebly.com/uploads/1/3/4/3/134366842/611a57.pdfIn PDF document text
    • https://kesevaze.weebly.com/uploads/1/3/1/3/131383297/jedagukopile.pdfIn PDF document text
    • https://kepubewi.weebly.com/uploads/1/3/6/0/136095452/pinog.pdfIn PDF document text
    • https://xufizuwerab.weebly.com/uploads/1/3/0/7/130738786/lekifanigilisakix.pdfIn PDF document text
    • https://vesizolakaz.weebly.com/uploads/1/3/4/3/134333528/firidatu.pdfIn PDF document text
    • https://tugigoboz.weebly.com/uploads/1/3/4/4/134499705/wutum_mogodamoz.pdfIn PDF document text
    • https://bediwejuze.weebly.com/uploads/1/3/4/8/134899819/pedatur.pdfIn PDF document text
    • https://lozagazol.weebly.com/uploads/1/3/4/2/134266804/senilawapuzaxuv.pdfIn PDF document text
    • https://nivunosanogerog.weebly.com/uploads/1/3/4/5/134516177/tovoso.pdfIn PDF document text
    • https://lezanixopedem.weebly.com/uploads/1/3/4/8/134886347/6733395.pdfIn PDF document text
    • https://godewofevi.weebly.com/uploads/1/3/2/8/132814364/9b94445819.pdfIn PDF document text
    • https://foluxafan.weebly.com/uploads/1/3/5/3/135397430/zutinisisek.pdfIn PDF document text
    • https://zejabunu.weebly.com/uploads/1/3/4/7/134719965/sometedemu.pdfIn PDF document text
    • https://dokojivoko.weebly.com/uploads/1/3/4/3/134395563/5536605.pdfIn PDF document text
    • https://bozaxadoduzake.weebly.com/uploads/1/3/4/3/134306622/6974121.pdfIn PDF document text
    • https://jekufagiz.weebly.com/uploads/1/3/0/7/130739150/9be9fd0b55362.pdfIn PDF document text
    • https://vuvopovakufusoz.weebly.com/uploads/1/3/4/3/134342968/6a0aca.pdfIn PDF document text
    • https://verozofuxedu.weebly.com/uploads/1/3/4/3/134330920/liwowifa_zaxunikes.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d83d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD83D 17356 bytes
SHA-256: 647fda14b98912e5d65e33a75626214a512c877b0b18040d691115c670ef42e5
font_01_sfnt_off00010559.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10559 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off00011bfd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11BFD 10788 bytes
SHA-256: 2f9270970fc18867c6e39f508a6dddb2932cc2a9ba21bf50c5ccb8aedc11f13b

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